Tetra Personal Gas Detector
from Crowcon Detection Instruments
Designed using the latest technologies, Tetra is simple to use, reliable, robust and fully weather protected. Single button operation and intelligent sensor modules guarantee simplicity and flexibility of use. The shockproof internal construction and self checking software assure reliable gas detection in the most arduous of environments. Tetra, a personal monitor you can trust. Prices start at $785.000 for a basic 4 gas unit.
Reliable
True single button operation - the most user friendly product available
Li-Ion rechargeable battery gives a full 12 hours of operation
Easy to read backlit graphic display for gas readings and diagnostics
Simple indications of operating status can be viewed at a glance
30 day countdown warning of calibration due date
Flexible
Fully interchangeable intelligent sensor modules
Available with internal electric sampling pump
Rechargeable and alkaline battery versions available
Tough
Tough plastic construction with flexible internal assembly to resist shock and vibration
Overmolded rubber for added protection
Water and dust resistant to IP65
Assurance
90 dBA audible alarm at 30cm
Piercingly bright dual red/blue visual alarm
Internal vibrating alarm
Two levels of instantaneous alarms
Time weighted average alarm for 8 hours and 15 minute averages
Instrument Specifications
Audible Alarms
90 dBA at 1 foot, multiple alarm sounds allow selection of distinctive tones for different alarm levels
Visual Alarms
Dual color red/blue flashing LED pair in gas hazard
Vibrating Alarm
Internal
Display
Graphic LCD with backlight, giving simultaneous display for all gas channels. Graphic symbols for battery (with proportional indication of remaining operation time), pump operation, healthy operation or fault warning. Start up indication when calibration is due within 30 days, calibration overdue or service required.
Display Mode
Normal display for continuous real time gas concentration levels, display recall for Peak readings and TWA
Datalogging
Event logging, 8000 event capacity
Battery Type
Rechargeable Li-Ion battery or non rechargeable pack 3 x AA alkaline cells
Operating Time
Rechargeable: 12 hours minimum
Alkaline: 11 hours minimum
Sampling
Hand aspirator or internal electric sampling pump
Temperature Range
-4 to 131°F
Humidity
0-99% RH
PC Interface
IR link for RS232 connection. USB/RS232 converter available. Portable PC software package provides full configuration control, calibration and access to the Event Log file
Autocalibrator
Tetra can be routinely calibrated using the Crowcon Autocalibrator II in conjunction with the Portables PC software
Approvals
Class I, Div I, Groups A, B, C, D, ATEX II2G EEx iad IIC T4 BASEEFA 03ATEX0193
Ingress Protection
IP 65
Weight
1.1 pounds
Dimensions
Rechargeable: 4.75" x 5" x 2.5"
Alkaline: 5.25" x 5" x 2.5"
Sensor Specifications
Gas
Range
Alarm
Response Time
Ammonia
0-100 ppm
0-1,000 ppm
25 ppm
20 seconds
Carbon Monoxide
0-500 ppm
0-1,500 ppm
35 ppm
20 seconds
Chlorine
0-20 ppm
0.5 ppm
20 seconds
Combustible
0-100% LEL
10% LEL
20 seconds
Ethylene Oxide
0-10 ppm
5 ppm
20 seconds
Hydrogen
0-1,000 ppm
n/a
20 seconds
Hydrogen Chloride
0-10 ppm
1 ppm
20 seconds
Hydrogen Cyanide
0-25 ppm
5 ppm
20 seconds
Hydrogen Fluoride
0-10 ppm
1 ppm
20 seconds
Hydrogen Sulfide
0-50 ppm
0-500 ppm
10 ppm
20 seconds
Nitric Oxide
0-100 ppm
25 ppm
20 seconds
Nitrogen Dioxide
0-10 ppm
0-20 ppm
3 ppm
20 seconds
Oxygen
0-25% Vol
19.5% (low), 23.5% (high)
10 seconds
Ozone
0-1 ppm
0.1 ppm
20 seconds
Phosphine
0-5 ppm
0.2 ppm
20 seconds
Sulfur Dioxide
0-10 ppm
2 ppm
20 seconds
Other ranges and alarm levels are available on request. Each gas channel can have two instantaneous alarm levels set, Toxic channels also have Time Weighted Average alarms. Flammable gas calibration is available for methane, propane, butane, pentane, hydrogen and ethylene as standard.
Ordering Information
The Tetra is supplied with an integral belt/pocket clip. Pumped units include a pump sampling flow plate with 6' of sampling tubing. Please specify rechargeable or AA battery pack. The Confined Space Kit includes a chest harness, shoulde strap, software, 58L calibration gas, regulator, cable, and case. Other sensor combinations available, please contact AFC for details. For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com
Description
Catalog No.
Tetra with LEL, Oxygen, Carbon Monoxide & Hydrogen Sulfide Sensors
AFC International, Inc.
PO Box 894, DeMotte, IN 46310
715 SW Almond St, Ste C, DeMotte, IN 46310
800-952-3293 219-987-6825 Fax 219-987-6826 eMail: sales@afcintl.com
